Definition An epidermoid cyst may be defined as a cyst arising from ectodermal cell-rests, and in particular from epidermal primordia. In the literate, varieties of cysts from dermoids, both sequestration and implantation types to cholesteatomas, have been included under the heading of epidermoids. Some authors have included wens or sebaceous cysts in the classification of epidermoids. In a sim...

Dermoid and epidermoid cysts in the oral cavity frequently develop in the midline or sublingual region of the floor of the mouth. Here, we report a rare case of an epidermoid cyst in the submandibular region. The patient was a 69-year-old man with a chief complaint of a mass in the right submandibular region. A mobile, elastic, relatively soft mass without tenderness was palpable in this region...

We report the case of a 4-year-old girl presenting with the retroperitoneal epidermoid cyst. The lesion presented as an intra-abdominal cyst on physical examination and was followed up with more specific investigations by ultrasound and computed tomographic scanning. The final diagnosis was obtained only after laparotomy where the cystic mass was completely excised and pathological examination ...

Intramedullary spinal epidermoid cysts are benign ectopic embryological growths with reported incidence of less than 1% of intramedullary tumors. In this case we report an unusual cervical intramedullary epidermid with liquid contents. A 40-year-old patient presented with progressive weakness of all four limbs of four months duration, bowel and bladder disturbances of two days duration, pain an...

Aberrant ectodermal tissues during the fetal period or acquired aberrant epithelial tissue due to trauma or surgery are thought to cause dermoid and epidermoid cysts. Their incidence is 7.0% in the head and neck region and only 1.6% in the oral cavity, where they mostly present in the floor of the mouth. On the other hand, they are extremely rare in the soft palate and uvula, and only six cases...

Epidermoid cysts are benign, congenital, and rare lesions corresponding to approximately to 0.2% to 1.8% of all intracranial tumors.1 Because of its pearly appearance, in 1829, Cruveilhier described these tumors as Tumeure Perlée. Virchow and Bailey coined the term “Pearl Tumor”; and, in 1836, Müller introduced the “Cholesteatoma” denomination.2 Approximately 5% of epidermoid cysts affects the ...

Epidermoid cysts are benign developmental anomalies that are rarely observed in the oral cavity of neonate. If large in size, especially in the developing fetus or newborn infant, they can cause swallowing difficulty and occasionally respiratory difficulty. We report a case of epidermoid cyst in the oral cavity detected prenatal sonography. The sonographic finding was large cystic mass, measuri...

Epidermoid cysts are malformations that are rarely observed in the submental region. Imaging has an important role in surgical planning according to the size and location of the cyst in relation to geniohyoid and mylohyoid muscles. This article reports the case of a 15-year-old female patient complaining of submental swelling. The differential diagnosis included infection, tumor, ranula, and ab...

Penile cysts are uncommon. A case of a 7-year-old boy with an epidermoid cyst of the penis is reported. He had an asymptomatic, slowly growing soft mass in the frenulum of the penis. Excision of the mass was performed, and the diagnosis was epidermoid cyst of the penis. No recurrence has been noted within the year since excision. To our knowledge, there have been no previous reports of malignan...